News

SOLID Garbage/Recycling Truck Data Recording
System

Every modern city over the world has its own
Sanitation Department. They take charge of the municipal sanitation, so that
people can walk in clean streets every day. And among their work, residential
garbage collection is one of the most important parts.

Currently, the feasible
way is to distribute garbage collection trucks to each residential area. Then
the question arises that how to supervise the garbage collection trucks to
reach their destinations and also finish recycling bins on time. It concerns
the Sanitation Department a lot.

According to this problem,
SOLID Technologies has provided a set of effective solutions with the offline
UHF distance RFID reading and writing technology.

Now this solution is also
provided with a Demo version to show the customs how to operate.

Among these, the Solid
STM32 development board includes Ethernet, UART, Micro SD Card, RTC, and so on;
the UHF distance RFID reader supports US and European frequency standards; the
passive tag’s identification distance is 1-6m.

The working procedure of
SOLID Garbage/Recycling Truck Data Recording System:

First attach the passive
RFID tags to the bottoms of garbage bins so that when the bins are lift up by
the mechanical arms of garbage cycling trucks, the system can drive the RFID
reader to read the tags. After that, the system will record into the Micro SD
card the tag information and time in EXCEL form. When the whole day’s work of
garbage cycling is finished, we can input the data of MicroSD card
into PC data base, so that the customs can easily search for it.

Next, we’ll begin our
demo:

Firstly, we will introduce
the connection method of each module:

The package of STM32
development board needs UART interface, GPIO interface, and power interface;

As for infrared sensor
module, the gray wire is signal wire, which is connected to GPIO, the red wire
is 3.3V power, and the black one is GND;

As for buzzer module, the
red wire is 3.3V power, and the black one is GPIO;

As for RFID reader module,
the blue wire is TXD, the green one id RXD the red one is 3.3v power, and the
black one is GND.

After connecting each
module, we will demo the product’s function:

Step 1: please check if the Micro SD card has been
inserted into the seat. If you haven’t inserted the card, the buzzer will give
an alarm. In this case, you have to insert your MicroSD card
again after power off.

Step 2: the system is equipped with the function of
infrared obstacle detection. Only with obstacles will the STM32 send commander
of reading RFID tags through UART interface, which can save system’s
power.

Step 3: when the red LED light on the infrared
detecting module is on, it means that the system has detected obstacles.
Meanwhile, the system will read effective RFID tags, and then input the tag
number and date accurate to second into the Micro SD card.

Step 4: After inputting the effective data, the
buzzer will alarm you with soundDU

Step 5: The system will automatically establish CSV
files, saving the data in fixed format. Customers can use MS EXCEL to open the
file to check information.

Good news! All the modules of this system are
available in SOLID depot online store! www.soliddepot.com .